"Hello Walls" is an American country music song sang by EVERYBODY! The song has nothing to do with this cache, with teh exception of the word "wall" in each title. While driving in Naha, we came upon the seawall that had some neat drawings. Except the one flipping the bird. Anyhow, the cache is located on the other side of the seawall. There are places to fish, hunt shells, hunt little creatures from the ocean and vegetation. BYOP and happy hunting. Increased difficulty due to muggles and that the CO is a butthead.